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JL Audio RD400/4 4-Channel Car Amplifier 100W x4 NexD

JL Audio RD400/4 4-Channel Car Amplifier 100W x4 NexD

JL Audio RD400/4 4-Channel Car Amplifier 100W x4 NexD

Compact 4-channel Class D amplifier delivering 100 W x4 into 2 ohms and 75 W x4 into 4 ohms. Bridgeable to 200 W x2. NexD switching and balanced inputs.

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Installation is excluded from the advertised product price unless specifically stated otherwise. Should you require professional installation, please contact the Rivonia Car Sound team for advice and a separate quotation. Additional installation accessories may be required, depending on the vehicle and product.

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SKU RD400/4 Category Brand:

Vehicle logos indicate compatibility only. This product is not manufactured or endorsed by the vehicle brand.

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The JL Audio RD400/4 is a compact 4-channel Class D full-range amplifier rated at 100 W x4 into 2 ohms and 75 W x4 into 4 ohms, bridgeable to 200 W x2 into 4 ohms. It uses JL Audio NexD high-speed switching technology for high efficiency and low distortion, features differential-balanced inputs, top-mounted controls under a protective cover, adjustable 12 dB/octave high-pass or low-pass filters from 50-500 Hz with defeat, signal-sensing or DC-offset auto turn-on, clipping LEDs, buffered preamp outputs, and a durable black powder-coated finish.
  • Power @ 14.4 V: 100 W x4 @ 2 ohms; 75 W x4 @ 4 ohms; Bridged 200 W x2 @ 4 ohms
  • Power @ 12.5 V: 90 W x4 @ 2 ohms; 60 W x4 @ 4 ohms; Bridged 180 W x2 @ 4 ohms
  • Frequency response: 12 Hz – 22 kHz (+0, -1 dB)
  • S/N ratio: >104 dB below rated power; >84 dB referred to 1 W (A-weighted)
  • THD+N: <1% @ rated power into 2 ohms per channel
  • Damping factor: >150 @ 4 ohms / 50 Hz; >75 @ 2 ohms / 50 Hz
  • Input voltage range (RCA): Switchable 200 mV – 2 V (Low) or 800 mV – 8 V (High)
  • Filters: High-pass or Low-pass, 12 dB/octave, 50-500 Hz, filter defeat
  • Inputs: Differential-balanced RCA, channel input mode switch for 2/4 channel
  • Remote level control: Not included
  • Preamp outputs: Buffered pass-through
  • Fuse rating: 40 A (AFS, AGU or MaxiFuse)
  • Minimum recommended power/ground wire: 4 AWG
  • Dimensions (H x W x D): 2.13 in x 9.78 in x 6.96 in (54 mm x 248 mm x 177 mm)
  • NexD high-speed switching for high efficiency and low distortion
  • 100 W x4 into 2 ohms, bridgeable to 200 W x2 into 4 ohms
  • Differential-balanced RCA inputs to reduce noise and accept varied source levels
  • Selectable 12 dB/octave high-pass or low-pass filters 50-500 Hz with defeat
  • Top-mounted controls under protective cover and side-mounted connections
  • Onboard LED clipping indicators for easy input sensitivity setup
  • Buffered preamp outputs for signal pass-through
  • Disconnect vehicle battery before installation
  • Use recommended 4 AWG power and ground wiring
  • Install a 40 A fuse on the power lead per specifications
  • Mount in a well ventilated location away from heat sources
  • Professional installation recommended if unsure
  • Most 12 V negative-ground cars, trucks and SUVs
  • Fits installations requiring compact amplifier dimensions 9.78 x 6.96 x 2.13 in

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